What is the solution of the equation x2 + 4 = 0?

x = ± 2i

Step-by-step explanation:

x² + 4 = 0 has no real solutions but has 2 complex solutions

Note that = i

Given

x² + 4 = 0 ( subtract 4 from both sides )

x² = - 4 ( take the square root of both sides )

x = ±

  = ±

  = ± ×

  = ± 2i

Thus the solutions are x = - 2i or x = 2i

both equations and proportions are better.

60°

step-by-step explanation:

the measure angle of c in an isosceles triangle abc is 60° because in isosceles triangle,the measures of all the angles is 60°.